She doesn't notice yet

Using a small amount of your powers you ensure that Lauren doesn't notice the damage to her skirt as she orders her coffee, giving David a view of her panties the entire time. His face is bright red with both embarrassment for his colleague and lust for her appearance, as she turns back to face him.

You decide to up the anti a little higher and as she walks towards him you pop open the top button of her blouse as well, it now hanging almost completely open, with just two buttons remaining, her full cleavage on complete display.